The San Francisco 49ers are preparing for their regular season opener against the Minnesota Vikings on Sunday at U.S. Bank Stadium.

Linebacker Malcolm Smith, who missed all of last season with a pectoral injury, continues to work his way back from a hamstring injury. Defensive coordinator Robert Saleh seemed confident that the defensive player will be available against the Vikings.

"He's going through practice today and everything looks good for gameday," Saleh told reporters on Thursday.

Smith is expected to be the starting WILL linebacker on Sunday.

Tackle Garry Gilliam and defensive back Jimmie Ward, who were both limited on Wednesday, were full participants during Thursday's practice. Gilliam has been in the concussion protocol since the 49ers' exhibition opener on August 9.

Below are Thursday's practice participation reports for both the 49ers and Vikings, which were provided by the 49ers Communications staff.

San Francisco 49ers Thursday Practice

Did Not Participate In Practice
T Erik Magnuson (hamstring)

Limited Participation in Practice
LB Malcolm Smith (hamstring)

Full Participation in Practice
T Garry Gilliam (concussion), S Jimmie Ward (quadricep)

Minnesota Vikings Thursday Practice

Did Not Participate In Practice
RB Roc Thomas (ankle)

Limited Participation in Practice
CB Mackensie Alexander (ankle), T Aviante Collins (elbow), C Pat Elflein (ankle, shoulder), T Riley Reiff (foot), CB Xavier Rhodes (hamstring)

Full Participation in Practice
WR Stacy Coley (groin), CB Marcus Sherels (hamstring)